S-90197A170 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient thread-forming design creates permanent, secure threads in sheet metal without pre-tapping, reducing installation time and labor costs
• Positive drive engagement with 1/4" external hex head prevents cam-out and allows high torque application with standard tools
• Full-length threading with 16 TPI provides maximum grip strength and uniform load distribution across the entire fastener length
• Integrated flange design eliminates need for separate washers, provides larger bearing surface and prevents pull-through in thin materials
• Precision needle point ensures accurate starting position and reduces walking during installation in sheet metal applications
• Comprehensive compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance

Professional Applications & Engineering Value

These No. 7 zinc-plated steel tapping screws deliver exceptional performance in sheet metal fabrication and assembly operations. The thread-forming design eliminates the need for separate tapping operations, significantly reducing production time while creating strong, vibration-resistant connections. The external hex drive combined with the 1/4" hex head provides superior torque transmission, preventing tool slippage and ensuring consistent clamping force. The flanged construction distributes load effectively across thin materials, preventing deformation and maintaining structural integrity. These industrial screws are engineered to withstand the rigors of manufacturing environments while maintaining RoHS 3 and REACH compliance for global supply chain requirements.

Specification Summary & Compliance

This thread-forming tapping screw features a No. 7 size with 0.151" thread diameter, 16 TPI right-hand threads, and 1/2" fully threaded length. The external hex/slotted drive accommodates multiple tool types, while the 0.328" flange diameter provides enhanced bearing surface. Designed for use with No. 30 drill bit (0.1285" diameter) in materials up to 0.05" thickness. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.